列表项就是存放在列表中的项目，在FreeRTOS中列表项定义如下所示，关于列表项描述不正确的是（）
struct xLIST_ITEM
{
listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE
configLIST_VOLATILE TickType_t xItemValue;
struct xLIST_ITEM * configLIST_VOLATILE pxNext;
{
listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE
configLIST_VOLATILE TickType_t xItemValue;
struct xLIST_ITEM * configLIST_VOLATILE pxNext;
struct xLIST_ITEM * configLIST_VOLATILE pxPrevious;
void * pvOwner;
void * configLIST_VOLATILE pvContainer;
listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE
};
void * pvOwner;
void * configLIST_VOLATILE pvContainer;
listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE
};
